摘要
电流变流体的流变性质和力学性质在电场里随电场强度的变化而实时地、可逆地发生变化， 这一特点使得它在自适应结构中的应用受到越来越多的重视。电流变流体夹心梁是在两弹性层间夹入一层电流变材料， 通过控制电流变材料屈服前的流变性质和力学性质来达到控制整个复合梁的动态响应。本文通过建立两端简支的电流变流体夹心梁的结构模型， 模拟分析了复合梁的动态响应及不同激励频率下的优化电场。
Electrorheological(ER) materials experience real-time and reversible changes in rheological and mechanical properties when subjected to electrical fields, which draw much attention to the use of ER materials in adaptive structures recently. ER sandwich beam is composed of two elastic layers and sandwiched ER layer. By controlling the pre-yield rheological and mechanical properties of ER materials, the dynamical response of the composed beam is then controlled. In this paper, ER sandwich beam simply supported at two ends is moded. The dynamical response of ER sandwich beam and the optimal electrical fields corresponding to different frequency are analyzed.
出处
《国防科技大学学报》
EI
CAS
CSCD
1999年第4期26-30,共5页
Journal of National University of Defense Technology
关键词
电流变流体
夹心梁
模型
复模量
优化控制
electrorheological sandwich beam, model, complex module, optimal control.
